Polishing, testing and assembling device for ultrasonic welding assembly

Abstract

The utility model discloses a polishing, testing and assembling device for an ultrasonic welding assembly, the ultrasonic welding assembly comprises a welding head, an amplitude modulation rod, a transducer and a spring piece assembly, and the device comprises a rack; the disassembling and assembling mechanism is arranged on the rack and used for positioning the ultrasonic welding assembly so as to facilitate disassembling or assembling; the screw disassembling and assembling mechanism is arranged on the rack and used for disassembling or assembling the spring piece assembly; the polishing mechanism is arranged on the rack and comprises a first polishing assembly used for polishing the welding head, a second polishing assembly used for polishing the amplitude modulation rod, a third polishing assembly used for polishing the energy converter and a fourth polishing assembly used for polishing the spring piece assembly; and the frequency impedance analyzer is arranged on the rack and used for testing the frequency and impedance of the polished ultrasonic welding assembly. According to the polishing testing and assembling device for the ultrasonic welding assembly, the polishing precision and efficiency can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of ultrasonic welding, in particular to a grinding test assembly device for ultrasonic welding components. Background Art

[0002] Ultrasonic welding uses the inverse piezoelectric effect of piezoelectric ceramics, that is, a certain voltage is applied to the piezoelectric ceramics to cause a certain deformation of the piezoelectric ceramics, thereby converting the high-frequency (10k-200k) voltage into high-frequency vibration of the piezoelectric ceramics. This vibration is transmitted to the welding head through the triple group, and finally to the material. The energy generated by the high-frequency vibration makes the several materials produce a melting effect, thus welding them together. The triple group is the core component of the ultrasonic welding machine, which includes the welding head, amplitude modulation rod, transducer and spring sheet assembly.

[0003] like Figure 1 As shown, the amplitude modulation rod 102 and the welding head 101, and the welding head 101 and the transducer 103 are connected via the spring sheet assembly 104. Since the principle of the ultrasonic welding machine is to convert the high-frequency (20k-100k) voltage into the mechanical vibration of the same frequency, the above-mentioned welding head 101, the amplitude modulation rod 102, the transducer 103 and the spring sheet assembly 104 are all subjected to reciprocating high-frequency beating during operation, resulting in that the joint surfaces between these parts are easily damaged, which directly causes the vibration transmitted to the welding head to change, affecting the actual welding effect.

[0004] For the above reasons, welding heads, amplitude modulation rods, transducers, spring sheets and other parts need to be removed and polished after being used for a period of time, otherwise the stress on the joint surface may be too large and the above parts may fail. At present, the polishing of the above parts is generally done manually. After the three-unit group parts are removed, they are manually polished with sandpaper and then assembled after polishing. The disadvantage of this method is that it is inefficient, and the accuracy of the flatness of the parts after polishing depends entirely on the experience of the polisher, and the polishing accuracy cannot be guaranteed. Utility Model Content

[0005] In order to solve the above problems, the purpose of the utility model is to provide a grinding test assembly device for ultrasonic welding components, which can realize semi-automatic grinding of ultrasonic welding components and improve grinding accuracy and efficiency.

[0006] Based on the above problems, the technical solution provided by the utility model is:

[0007] A grinding test assembly device for an ultrasonic welding assembly, wherein the ultrasonic welding assembly comprises a welding head, an amplitude modulation rod, a transducer and a spring sheet assembly, and the device comprises:

[0008] frame;

[0009] A disassembly and assembly mechanism, which is arranged on the frame and is used to position and clamp the ultrasonic welding assembly for easy disassembly or assembly;

[0010] A screw disassembly and assembly mechanism, which is arranged on the frame and is used to disassemble or assemble the spring sheet assembly;

[0011] A grinding mechanism, which is arranged on the frame, comprises a first grinding assembly for grinding the welding head, a second grinding assembly for grinding the amplitude modulation rod, a third grinding assembly for grinding the transducer and a fourth grinding assembly for grinding the spring sheet assembly;

[0012] A frequency impedance analyzer is arranged on the frame and is used to test the frequency and impedance of the polished ultrasonic welding assembly.

[0013] In some embodiments, the disassembly and assembly mechanism includes a support and two flange clamping assemblies arranged on the support, the flange clamping assembly includes a first flange portion fixed on the support and a second flange portion hinged to the first flange portion at one end, the other end of the second flange portion is detachably connected to the first flange portion, and a positioning hole for inserting the spring sheet assembly is formed between the first flange portion and the second flange portion, and the axis of the positioning hole extends in a horizontal direction.

[0014] In some embodiments, the disassembly and assembly mechanism also includes a rotating positioning component, and the rotating positioning component includes a first plate and a second plate connected in an L-shape, the first plate is detachably connected to the support, and the second plate is abutted against the ultrasonic welding component.

[0015] In some embodiments, the first grinding assembly, the second grinding assembly, the third grinding assembly, and the fourth grinding assembly respectively include a driving motor, a buffer support component transmission connected to the driving motor, a grinding platform arranged on the buffer support component, a shell covering the outside of the buffer support component, and a proximity switch installed on the side of the shell, wherein the proximity switch is connected to the driving motor, and the driving motor is turned on when the proximity switch senses a workpiece.

[0016] In some embodiments, the first grinding assembly further includes a first positioning cover adapted to the welding head, and the first positioning cover is provided with a first limiting hole for the welding head to be placed therein;

[0017] The second grinding assembly further includes a second positioning cover adapted to the amplitude modulation rod, and the second positioning cover is provided with a second limiting hole for the amplitude modulation rod to be placed therein;

[0018] The third polishing assembly further comprises a third positioning cover adapted to the transducer, and the third positioning cover is provided with a third limiting hole for the transducer to be placed therein;

[0019] The fourth grinding assembly further includes a fourth positioning cover adapted to the spring sheet and a spring sheet pressing block for pressing the spring sheet onto the grinding platform. The fourth positioning cover is provided with a fourth limiting hole adapted to the grinding platform.

[0020] In some embodiments, the buffer support component includes a support shaft drivingly connected to the drive motor, a support platform arranged at an upper end of the support shaft, and a plurality of elastic members arranged between the support platform and the polishing platform.

[0021] In some of the embodiments, the proximity switch is adjustably disposed on the housing.

[0022] In some of the embodiments, the screw disassembly and assembly mechanism includes a torque screwdriver bracket arm mounted on the frame, an electric screwdriver mounted on the torque screwdriver bracket arm, and a tooling base with a limiting spring sheet assembly arranged on the frame.

[0023] In some of the embodiments, a storage box for storing workpieces is also provided on the frame.

[0024] In some embodiments, the frame includes a frame body, a tool drawer disposed on the frame body, a table panel disposed at the upper end of the frame body, and a handle disposed on one side of the table panel, and a brake roller is disposed at the bottom of the frame body.

[0025] Compared with the prior art, the advantages of the utility model are:

[0026] The ultrasonic welding assembly is disassembled by means of the disassembly and assembly mechanism and the screw disassembly and assembly mechanism, and then each component that needs to be polished is placed on the polishing mechanism for polishing. After polishing, the ultrasonic welding assembly is assembled by means of the disassembly and assembly mechanism and the screw disassembly and assembly mechanism, and then the frequency and impedance of the ultrasonic welding assembly after polishing are tested by a frequency impedance analyzer to see whether they meet the production requirements. The device can realize semi-automatic polishing of ultrasonic welding assemblies and improve polishing accuracy and efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the description of the embodiments will be briefly introduced below. The drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0028] Figure 1It is a structural schematic diagram of an ultrasonic welding assembly in the prior art;

[0029] Figure 2 It is a structural schematic diagram of an embodiment of a grinding test assembly device for ultrasonic welding components of the utility model;

[0030] Figure 3 This is a structural schematic diagram of the disassembly and assembly mechanism in the embodiment of the utility model;

[0031] Figure 4 This is a structural schematic diagram of the grinding structure in the embodiment of the utility model;

[0032] Figure 5 This is a schematic diagram of the structure of the grinding structure in the embodiment of the utility model after removing part of the outer shell;

[0033] in:

[0034] 100, ultrasonic welding assembly 101, welding head 102, amplitude modulation rod 103, transducer 104, spring sheet assembly; 104a, spring sheet;

[0035] 1. Frame 1-1, frame body 1-2, tool drawer 1-3, table top 1-4, handle 1-5, brake roller;

[0036] 2. Disassembly and assembly mechanism 2-1, support 2-2, first flange 2-3, second flange 2-4, rotation positioning component; 2-4a, waist-shaped adjustment hole;

[0037] 3. Grinding mechanism 3-1. Driving motor 3-2. Support shaft 3-3. Support platform 3-4. Elastic member; 3-5. Grinding platform; 3-6. Housing; 3-6a. Dust removal interface; 3-7. First positioning cover; 3-8. Second positioning cover; 3-9. Third positioning cover; 3-10. Fourth positioning cover; 3-11. Spring sheet pressing block; 3-12. Proximity switch; 3-13. Connecting sheet; 3-14. Bracket plate;

[0038] 4. Screw disassembly and assembly mechanism 4-1, torque screwdriver bracket arm 4-2, tooling base;

[0039] 5. Frequency impedance analyzer;

[0040] 6. Storage box. DETAILED DESCRIPTION

[0041] The above scheme is further described below in conjunction with specific examples. It should be understood that these examples are used to illustrate the utility model and are not limited to the scope of the utility model. The implementation conditions used in the examples can be further adjusted according to the conditions of the specific manufacturer, and the implementation conditions not specified are usually the conditions in conventional experiments.

[0042] like Figure 2 As shown, it is a structural schematic diagram of an embodiment of the utility model, which provides a grinding test assembly device for ultrasonic welding components, including a frame 1, a disassembly mechanism 2 arranged on the frame 1, a screw disassembly mechanism 4, a grinding mechanism 3 and a frequency impedance analyzer 5. The ultrasonic welding component 100 is disassembled by the disassembly mechanism 2 and the screw disassembly mechanism 4, and then each component is placed on the grinding mechanism 3 for semi-automatic grinding.

[0043] The frame 1 includes a frame body 1-1, a tool drawer 1-2 arranged on the frame body 1-1, a table panel 1-3 arranged at the upper end of the frame body 1-1 and a handle 1-4 arranged on one side of the table panel 1-3. A brake roller 1-5 is provided at the bottom of the frame body 1-1 to facilitate the movement and parking of the entire device.

[0044] like Figure 3 As shown, the disassembly mechanism 2 is mainly used for positioning and clamping the ultrasonic welding component 100 for easy disassembly and assembly, and includes a support 2-1 and two flange clamping components arranged on the support 2-1. The ultrasonic welding component 100 is clamped on the two flange clamping components, and tools such as torque wrenches and hook wrenches are used to disassemble or assemble the ultrasonic welding component 100.

[0045] Specifically, the flange clamping assembly includes a first flange portion 2-2 fixed on the support 2-1 and a second flange portion 2-3 hinged to the first flange portion 2-2 at one end, and the other end of the second flange portion 2-3 is detachably connected to the first flange portion 2-1 via a locking member, and a positioning hole for inserting the spring sheet assembly 104 is formed between the first flange portion 2-2 and the second flange portion 2-3, and the axis of the positioning hole extends in the horizontal direction, that is, the ultrasonic welding assembly 100 is horizontally positioned on the frame 1, wherein the locking member can be a screw.

[0046] In order to prevent the ultrasonic welding assembly 100 from moving in the circumferential direction, the disassembly and assembly mechanism 2 also includes a rotation positioning component 2-4, which is detachably mounted on the support 2-1 and abuts against the ultrasonic welding assembly 100, thereby preventing the ultrasonic welding assembly 100 from rotating when being disassembled.

[0047] Specifically, the rotation positioning component 2-4 includes a first plate and a second plate connected in an L-shape, the first plate is fixed to the support 2-1 by bolts, and the second plate abuts against the ultrasonic welding assembly 100, thereby realizing the radial positioning of the ultrasonic welding assembly 100. In order to facilitate the adjustment of the position of the rotation positioning component 2-4, a waist-shaped adjustment hole 2-4a for inserting a bolt is provided on the first plate, and the position of the rotation positioning component 2-4 is adjusted by adjusting the position of the bolt in the waist-shaped adjustment hole 2-4a to abut against the ultrasonic welding assembly 100 to prevent it from rotating.

[0048] The screw disassembling and assembling mechanism 4 includes a torque screwdriver bracket arm 4-1 mounted on the frame 1, an electric screwdriver (not shown) mounted on the torque screwdriver bracket arm 4-1, and a tooling base 4-2 for limiting a spring sheet assembly arranged on the frame 1, wherein the torque screwdriver bracket arm 4-1 and the electric screwdriver are both prior arts and are not described in detail in the utility model. A limiting groove for inserting the spring sheet assembly is provided on the tooling base 4-2 to limit the spring sheet assembly.

[0049] like Figure 4 and Figure 5 As shown, the grinding mechanism 3 includes a first grinding assembly for grinding the welding head 101, a second grinding assembly for grinding the amplitude modulation rod 102, a third grinding assembly for grinding the transducer 103, and a fourth grinding assembly for grinding the spring sheet assembly 104. The first grinding assembly, the second grinding assembly, the third grinding assembly, and the fourth grinding assembly are fixed on the frame 1 via the bracket plate 3-14.

[0050] The first grinding assembly, the second grinding assembly, the third grinding assembly, and the fourth grinding assembly respectively include a driving motor 3-1, a buffer support component connected to the driving motor 3-1, a grinding platform 3-5 arranged on the buffer support component, a housing 3-6 covered on the outside of the buffer support component, and a proximity switch 3-12 installed on the side of the housing 3-6. The proximity switch 3-12 is connected to the driving motor 3-1, and the driving motor 3-12 is turned on when the proximity switch 3-12 senses a workpiece. Among them, sandpaper is attached to the grinding platform 3-5, and when the driving motor 3-1 rotates, the grinding platform 3-5 can grind the workpiece placed thereon.

[0051] In order to facilitate the positioning of the workpiece to be polished, the first polishing assembly also includes a first positioning cover 3-7 adapted to the welding head 101, and the first positioning cover is provided with a first limiting hole for the welding head to be placed; the second polishing assembly also includes a second positioning cover 3-8 adapted to the amplitude modulation rod 102, and the second positioning cover is provided with a second limiting hole for the amplitude modulation rod 102 to be placed; the third polishing assembly also includes a third positioning cover 3-9 adapted to the transducer 103, and the third positioning cover 3-9 is provided with a third limiting hole for the transducer 103 to be placed; the fourth polishing assembly also includes a fourth positioning cover 3-10 adapted to the spring sheet 104a and a spring sheet pressing block 3-11 for pressing the spring sheet 104a on the polishing platform 3-5, and the fourth positioning cover 3-10 is provided with a fourth limiting hole adapted to the polishing platform 3-5. The above-mentioned positioning covers are respectively fixed to the upper end of the corresponding housing 3-6, and in order to facilitate the discharge of dust generated by polishing, the housing 3-6 is provided with a dust removal interface 3-6a.

[0052] Among them, the buffer support component includes a support shaft 3-2 transmission connected to the drive motor 3-1, a support platform 3-3 arranged at the upper end of the support shaft 3-2, and a plurality of elastic members 3-4 arranged between the support platform 3-3 and the grinding platform 3-5. Preferably, the elastic member 3-4 is a spring.

[0053] In order to improve the accuracy of grinding and facilitate the grinding operation, the proximity switch 3-12 is adjustable in position on the housing 3-6. Specifically, the proximity switch 3-12 is installed on the housing 3-6 via a connecting plate 3-13. A plurality of connecting holes arranged in the vertical direction are provided on the housing 3-6, and a waist-shaped hole is provided on the connecting plate 3-13. The connecting plate 3-13 is fixed to the housing 3-6 via bolts. By adjusting the position of the connection between the bolts and the housing 3-6, the height of the proximity switch 3-12 can be adjusted, thereby adjusting the downward pressing distance of the buffer component. When grinding, the workpiece is manually placed on the corresponding grinding component and pressed down a certain distance. When the proximity switch 3-12 senses the workpiece, the drive motor 3-1 works to drive the grinding platform 3-5 to rotate to grind the workpiece. After the grinding is completed, the workpiece is manually taken out and the drive motor 3-1 stops working.

[0054] In order to store the disassembled workpieces conveniently, a storage box 6 is further provided on the frame 1 .

[0055] The working principle of the utility model is:

[0056] The ultrasonic welding assembly 100 is fixed on the disassembly and assembly mechanism 2, and the welding head 101, the amplitude modulation rod 102 and the transducer 103 are removed by using tools such as a torque wrench and a hook wrench, and the spring sheet assembly 104 is placed on the base 4-2. The electric screwdriver is moved to a suitable position by the torque electric screwdriver bracket arm 4-1, and the screws on the spring sheet assembly 104 are removed. The removed components are placed in the storage box 6; the welding head 101, the amplitude modulation rod 102, the transducer 103, and the spring sheet 104a are manually placed on the corresponding grinding assembly for grinding, wherein the spring sheet 104a needs to be ground by a spring sheet pressing Block 3-11 presses it on the grinding platform 3-5. When the proximity switch 3-12 senses the workpiece, the drive motor 3-1 works to drive the grinding platform 3-5 to rotate and grind the workpiece. After the grinding is completed, the workpiece is taken out manually. The proximity switch 3-12 cannot sense the workpiece, and the drive motor 3-1 stops working. The spring sheet assembly 104 is assembled through the screw disassembly mechanism 4, and then the spring sheet assembly 104 is fixed on the disassembly mechanism 2 to complete the assembly of the ultrasonic welding assembly 100. After the assembly is completed, the frequency impedance analyzer 5 is used to test whether the frequency and impedance meet the production requirements.

[0057] In summary, the device can realize semi-automatic grinding of ultrasonic welding components, improve grinding accuracy and efficiency, and thus improve production efficiency.

[0058] The above examples are only for illustrating the technical concept and features of the utility model, and their purpose is to enable people familiar with the technology to understand the content of the utility model and implement it accordingly, and they cannot be used to limit the protection scope of the utility model. Any equivalent changes or modifications made according to the spirit of the utility model should be included in the protection scope of the utility model.

Claims

1. A grinding test assembly device for an ultrasonic welding assembly, wherein the ultrasonic welding assembly comprises a welding head, an amplitude modulation rod, a transducer and a spring sheet assembly, characterized in that: The device comprises: frame; A disassembly and assembly mechanism, which is arranged on the frame and is used to position and clamp the ultrasonic welding assembly for easy disassembly or assembly; A screw disassembly and assembly mechanism, which is arranged on the frame and is used to disassemble or assemble the spring sheet assembly; A grinding mechanism, which is arranged on the frame, comprises a first grinding assembly for grinding the welding head, a second grinding assembly for grinding the amplitude modulation rod, a third grinding assembly for grinding the transducer and a fourth grinding assembly for grinding the spring sheet assembly; A frequency impedance analyzer is arranged on the frame and is used to test the frequency and impedance of the polished ultrasonic welding assembly.

2. The grinding test assembly device for ultrasonic welding components according to claim 1, characterized in that: The disassembly and assembly mechanism includes a support and two flange clamping assemblies arranged on the support, the flange clamping assembly includes a first flange portion fixed on the support and a second flange portion hinged to the first flange portion at one end, the other end of the second flange portion is detachably connected to the first flange portion, and a positioning hole for inserting the spring sheet assembly is formed between the first flange portion and the second flange portion, and the axis of the positioning hole extends in the horizontal direction.

3. The grinding test assembly device for ultrasonic welding components according to claim 2, characterized in that: The disassembly and assembly mechanism also includes a rotation positioning component, which includes a first plate and a second plate connected in an L-shape, the first plate is detachably connected to the support, and the second plate is in contact with the ultrasonic welding assembly.

4. The grinding test assembly device for ultrasonic welding components according to claim 1, characterized in that: The first grinding assembly, the second grinding assembly, the third grinding assembly and the fourth grinding assembly respectively include a driving motor, a buffer support component transmission-connected to the driving motor, a grinding platform arranged on the buffer support component, a shell covering the outside of the buffer support component and a proximity switch installed on the side of the shell, wherein the proximity switch is connected to the driving motor and turns on the driving motor when the proximity switch senses a workpiece.

5. The grinding test assembly device for ultrasonic welding components according to claim 4, characterized in that: The first grinding assembly further comprises a first positioning cover adapted to the welding head, and the first positioning cover is provided with a first limiting hole for the welding head to be placed therein; The second grinding assembly further includes a second positioning cover adapted to the amplitude modulation rod, and the second positioning cover is provided with a second limiting hole for the amplitude modulation rod to be placed therein; The third polishing assembly further comprises a third positioning cover adapted to the transducer, and the third positioning cover is provided with a third limiting hole for the transducer to be placed therein; The fourth grinding assembly further includes a fourth positioning cover adapted to the spring sheet and a spring sheet pressing block for pressing the spring sheet onto the grinding platform. The fourth positioning cover is provided with a fourth limiting hole adapted to the grinding platform.

6. The grinding test assembly device for ultrasonic welding components according to claim 4, characterized in that: The buffer support component includes a support shaft drivingly connected to the drive motor, a support platform arranged at the upper end of the support shaft, and a plurality of elastic members arranged between the support platform and the grinding platform.

7. The grinding test assembly device for ultrasonic welding components according to claim 4, characterized in that: The proximity switch is adjustable in position on the housing.

8. The grinding test assembly device for ultrasonic welding components according to claim 1, characterized in that: The screw disassembling and assembling mechanism comprises a torque electric screwdriver bracket arm mounted on the frame, an electric screwdriver mounted on the torque electric screwdriver bracket arm, and a tooling base arranged on the frame for limiting a spring sheet assembly.

9. The grinding test assembly device for ultrasonic welding components according to claim 8, characterized in that: The frame is also provided with a storage box for storing workpieces.

10. The grinding test assembly device for ultrasonic welding components according to claim 1, characterized in that: The frame comprises a frame body, a tool drawer arranged on the frame body, a table panel arranged at the upper end of the frame body and a handle arranged at one side of the table panel. A brake roller is arranged at the bottom of the frame body.

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